PROTHONOTARY WARBLERS AS INDICATORS OF
... nest predators. I monitored the reproductive success of Prothonotary Warblers (Protonotaria citrea), a migratory songbird that breeds preferentially over water within forested wetlands, in the Cache River watershed in Illinois during 1993-2007. Here I highlight how this warbler is an indicator of hy ...
... nest predators. I monitored the reproductive success of Prothonotary Warblers (Protonotaria citrea), a migratory songbird that breeds preferentially over water within forested wetlands, in the Cache River watershed in Illinois during 1993-2007. Here I highlight how this warbler is an indicator of hy ...
Final Report - Rufford Small Grants
... the custodians of this biodiversity through technical reports, workshops and peer reviewed publications. Various private landholders granted permission for this study, and every effort was taken to increase awareness on the need to conserve the fragile headwater tributaries where the native and enda ...
... the custodians of this biodiversity through technical reports, workshops and peer reviewed publications. Various private landholders granted permission for this study, and every effort was taken to increase awareness on the need to conserve the fragile headwater tributaries where the native and enda ...
Information Sheets - Cessnock City Council
... species more typical of the dryer inland areas (resulting in double the diversity!). ...
... species more typical of the dryer inland areas (resulting in double the diversity!). ...
Consequences of low mobility in spatially and temporally
... Each model run proceeds for 100 time-steps, equivalent to 1000 years. In static landscapes, 100 steps curtailed the migration process in some cases (see below). In dynamic landscapes, however, replicated trial runs always showed species frequency stabilizing well before 100 time-steps, demonstrating ...
... Each model run proceeds for 100 time-steps, equivalent to 1000 years. In static landscapes, 100 steps curtailed the migration process in some cases (see below). In dynamic landscapes, however, replicated trial runs always showed species frequency stabilizing well before 100 time-steps, demonstrating ...
The interplay between habitat structure and chemical
... habitats influences composition of species (e.g., Matias, Underwood & Coleman, 2007), complex habitats can support communities that are probably more likely to include species that are tolerant to particular types of disturbances than less structured habitats. Contamination by chemicals is a particu ...
... habitats influences composition of species (e.g., Matias, Underwood & Coleman, 2007), complex habitats can support communities that are probably more likely to include species that are tolerant to particular types of disturbances than less structured habitats. Contamination by chemicals is a particu ...
21 | CONSERVATION AND BIODIVERSITY
... to human health and welfare. Through selective breeding, humans have domesticated animals, plants, and fungi, but even this diversity is suffering losses because of market forces and increasing globalism in human agriculture and migration. For example, international seed companies produce only a ver ...
... to human health and welfare. Through selective breeding, humans have domesticated animals, plants, and fungi, but even this diversity is suffering losses because of market forces and increasing globalism in human agriculture and migration. For example, international seed companies produce only a ver ...
PDF
... 1 was located at an elevation of 390 m, whereas experimental 1 was at an elevation of 400 m; control and experimental 2 were at an elevation of 470 m; and control and experimental 3 were at an elevation of 360 m. We began removing all A. gundlachi from the experimental plots on 24 June. During the f ...
... 1 was located at an elevation of 390 m, whereas experimental 1 was at an elevation of 400 m; control and experimental 2 were at an elevation of 470 m; and control and experimental 3 were at an elevation of 360 m. We began removing all A. gundlachi from the experimental plots on 24 June. During the f ...
View plan for Opaelua Lower Management Unit
... • Assess if the percent cover for both the native understory and canopy is 50% or more across the entire management unit (Makua Implementation Team et al. 2003). • If native species cover is not below the 50% threshold, determine if this value is increased significantly toward that goal based on rep ...
... • Assess if the percent cover for both the native understory and canopy is 50% or more across the entire management unit (Makua Implementation Team et al. 2003). • If native species cover is not below the 50% threshold, determine if this value is increased significantly toward that goal based on rep ...
2.2 Measuring abiotic components of the system
... matter; the “Biosphere II” experiment was an attempt to model this. Strictly, closed systems do not occur naturally on Earth, but all the global cycles of matter, for example, the water and nitrogen cycles, approximate to closed systems. • An isolated system exchanges neither matter nor energy. No s ...
... matter; the “Biosphere II” experiment was an attempt to model this. Strictly, closed systems do not occur naturally on Earth, but all the global cycles of matter, for example, the water and nitrogen cycles, approximate to closed systems. • An isolated system exchanges neither matter nor energy. No s ...
THE EFFCT OF DISTANCE FROM EDGE ON THE DENSITY AND
... accurate, and easy to do (Larson, O’Neill, & Kemp, 1999, p. 213). We swept two high so that we could catch any grasshoppers that jumped or lived in the upper part of the grass; we swept two low so that we could catch the grasshoppers that prefer the lower part of the grass. In the lab, we then sepa ...
... accurate, and easy to do (Larson, O’Neill, & Kemp, 1999, p. 213). We swept two high so that we could catch any grasshoppers that jumped or lived in the upper part of the grass; we swept two low so that we could catch the grasshoppers that prefer the lower part of the grass. In the lab, we then sepa ...
THE EFFCT OF DISTANCE FROM EDGE ON THE DENSITY AND
... Biodiversity is the variety of life in an ecosystem (Wilson, 2007). An ecosystem with more biodiversity is more likely to survive drastic habitat changes, such as natural disasters. It is important that ecosystems thrive because all life depends on the ecosystems for everyday resources such as food, ...
... Biodiversity is the variety of life in an ecosystem (Wilson, 2007). An ecosystem with more biodiversity is more likely to survive drastic habitat changes, such as natural disasters. It is important that ecosystems thrive because all life depends on the ecosystems for everyday resources such as food, ...
Why Are There So Many of Us
... be related in a way that is not yet clear to us. In this case, it must be a hypothesis that includes aspects of human behavior and biology as well as anthropogenic changes in the ecosystem (Cassel, 1964). We must be prepared to explore any possibility. ...
... be related in a way that is not yet clear to us. In this case, it must be a hypothesis that includes aspects of human behavior and biology as well as anthropogenic changes in the ecosystem (Cassel, 1964). We must be prepared to explore any possibility. ...
The relationship between biodiversity and ecosystem functioning in
... the food chain. Identically, the study of predator effects on stability has mainly focused on the impact of this ‘vertical’ diversity and not on how diversity within trophic levels affects ecosystem stability. A destabilising effect of consumers on prey stability has generally been found in this case ( ...
... the food chain. Identically, the study of predator effects on stability has mainly focused on the impact of this ‘vertical’ diversity and not on how diversity within trophic levels affects ecosystem stability. A destabilising effect of consumers on prey stability has generally been found in this case ( ...
i.e. Mayfield and Levine 2010
... both niche and competitive ability differences are manifestations of trait value differences between species, which may or may not have phylogenetic signal. Furthermore, how these traits influence coexistence depends on their interaction with the factors limiting growth in the environment. The niche ...
... both niche and competitive ability differences are manifestations of trait value differences between species, which may or may not have phylogenetic signal. Furthermore, how these traits influence coexistence depends on their interaction with the factors limiting growth in the environment. The niche ...
Inferring species interactions in ecological communities
... species interactions act simultaneously, such as competition, predation, commensalism or mutualism. However, experimental and theoretical investigations have generally been limited by focusing on one type of interaction at a time or by a lack of a common methodological and conceptual approach to mea ...
... species interactions act simultaneously, such as competition, predation, commensalism or mutualism. However, experimental and theoretical investigations have generally been limited by focusing on one type of interaction at a time or by a lack of a common methodological and conceptual approach to mea ...
Great Basin Fact Sheet No. 1: Putting Resilience and Resistance
... Figure 1. Resilience and resistance of the dominant vegetation types in the Great Basin. Resilience to disturbance is lowest in salt desert shrub types with warm (mesic) and dry (aridic) soils and highest in mountain big sagebrush/mountain brush types with cool (frigid) to moist (xeric) bordering on ...
... Figure 1. Resilience and resistance of the dominant vegetation types in the Great Basin. Resilience to disturbance is lowest in salt desert shrub types with warm (mesic) and dry (aridic) soils and highest in mountain big sagebrush/mountain brush types with cool (frigid) to moist (xeric) bordering on ...
Biogeographic Crossroads as Priority Areas for Biodiversity
... process is assessment of the degree to which a proposed area will benefit multiple taxa, not just the focal or indicator taxon (or taxa) used to assign conservation priority. Prendergast (1997 ) and others ( Pearson & Cassola 1992; Oliver et al. 1998) have shown that, locally, the patterns of richne ...
... process is assessment of the degree to which a proposed area will benefit multiple taxa, not just the focal or indicator taxon (or taxa) used to assign conservation priority. Prendergast (1997 ) and others ( Pearson & Cassola 1992; Oliver et al. 1998) have shown that, locally, the patterns of richne ...
assessment
... Forestry has the potential to degrade mussel habitat through erosion and siltation caused by harvesting, particularly if buffer zones are inadequate (TSSC 2011). There is also a risk associated with fire (hence loss of vegetation, erosion and siltation) in tree plantations. Freshwater mussels are af ...
... Forestry has the potential to degrade mussel habitat through erosion and siltation caused by harvesting, particularly if buffer zones are inadequate (TSSC 2011). There is also a risk associated with fire (hence loss of vegetation, erosion and siltation) in tree plantations. Freshwater mussels are af ...
A food web perspective on large herbivore community limitation
... instantaneous estimates even though predation rates are likely to decrease as prey become scarcer. Nevertheless, the estimated levels of predation are large enough to suggest that predation strongly regulates populations of herbivore species below 150 kg, since for many species our estimates predict ...
... instantaneous estimates even though predation rates are likely to decrease as prey become scarcer. Nevertheless, the estimated levels of predation are large enough to suggest that predation strongly regulates populations of herbivore species below 150 kg, since for many species our estimates predict ...
Generalities in grazing and browsing ecology du Toit, Johan T
... rule. Such examples fit within the conceptual framework of across-guild comparisons (Fig. 1) yet that general approach has not previously been formalized for controlling the contingency problem in community ecology. Here we demonstrate the utility of the framework for clarifying generalities in graz ...
... rule. Such examples fit within the conceptual framework of across-guild comparisons (Fig. 1) yet that general approach has not previously been formalized for controlling the contingency problem in community ecology. Here we demonstrate the utility of the framework for clarifying generalities in graz ...
Recent Literature and Resources: Forest Management on Public Lands
... provide an extended background for this special issue of the Canadian Journal of Forest Research and highlights the key findings of the papers included in the issue. The topics covered address new information about (1) the role of cargo shipments as invasion pathways for the arrival of insects such ...
... provide an extended background for this special issue of the Canadian Journal of Forest Research and highlights the key findings of the papers included in the issue. The topics covered address new information about (1) the role of cargo shipments as invasion pathways for the arrival of insects such ...
Restoration ecology
Restoration ecology emerged as a separate field in ecology in the 1980s. It is the scientific study supporting the practice of ecological restoration, which is the practice of renewing and restoring degraded, damaged, or destroyed ecosystems and habitats in the environment by active human intervention and action. The term ""restoration ecology"" is therefore commonly used for the academic study of the process, whereas the term ""ecological restoration"" is commonly used for the actual project or process by restoration practitioners.